Three options, and the free one is genuinely usable rather than a trial.
Free
Unlimited notes, folders and tags, the full editor, drawings, images and PDFs, voice recording, note links and graph view, templates, version history, backups and export. No account, no time limit.
Pro
Everything in Free, plus Grape AI with no keys to manage: unlimited AI chat with the note agent, semantic search, voice transcription, AI web search, flashcards, quizzes and mind maps, plus cross device sync and priority support. You can also bring your own API keys on Pro if you prefer a specific provider.
Lifetime
A one time purchase that unlocks all the AI features using your own API keys. It does not include Grape AI or cross device sync. If you already pay for an AI provider and work mostly on one machine, this is usually the cheaper path.
Choosing
Want sync and no fuss, take Pro. Have your own keys and one main device, take Lifetime. Not sure yet, stay on Free for as long as you like, and see Set up AI for what the AI setup looks like on each path.